If you meant available, here's the output of that: bash-3.00# zfs list -o available r12_data AVAIL 62.7G bash-3.00# zfs list -o available r12_data/d24 AVAIL 2.14G bash-3.00# zfs list -o available r12_data/d25 AVAIL 62.7G bash-3.00#
----- Original Message ---- From: Michael Ramchand <mich...@ramchand.net> To: Grant Lowe <gl...@sbcglobal.net> Cc: zfs-discuss@opensolaris.org Sent: Tuesday, March 17, 2009 8:32:49 AM Subject: Re: [zfs-discuss] Disk usage Well, it is kinda confusing... In short, df -h will always return the size of the WHOLE pool for "size" (unless you've set a quota on the dataset in which case it says that), the amount of space that particular dataset is using for "used", and the total amount of free space on the WHOLE pool for "avail" (unless you've got a quota or reservation set). So in your original mail. 695G is the size of the DATA on the r12_data pool. zfs list r12_data says you are using 596G. I think this is the RAW capacity used, and I reckon you are using compression. (zfs get compressratio r12_data will give you something like 1.1). However, df -h of r12_data/d24 should have the identical 1st and 3rd fields, but they don't. (Could you re-run?) Same goes for the zfs list commands. Could you try doing zfs list -o space to get a fuller breakdown of how the space is being used. Mike Grant Lowe wrote: > Hi Mike, > > Yes, d25 is a clone of d24. Here are some data points about it: > > bash-3.00# zfs get reservation r12_data/d25 > NAME PROPERTY VALUE SOURCE > r12_data/d25 reservation none default > bash-3.00# zfs get quota r12_data/d25 > NAME PROPERTY VALUE SOURCE > r12_data/d25 quota none default > bash-3.00# > bash-3.00# zfs list r12_data > NAME USED AVAIL REFER MOUNTPOINT > r12_data 596G 62.7G 24.5K none > bash-3.00# > bash-3.00# zfs list -t snapshot r12_data/d...@a > NAME USED AVAIL REFER MOUNTPOINT > r12_data/d...@a 904K - 39.9G - > bash-3.00# > > Thanks for the response. Did you need any more data points from me? > > > > ----- Original Message ---- > From: Michael Ramchand <mich...@ramchand.net> > To: Grant Lowe <gl...@sbcglobal.net> > Cc: zfs-discuss@opensolaris.org > Sent: Tuesday, March 17, 2009 12:40:53 AM > Subject: Re: [zfs-discuss] Disk usage > > Grant Lowe wrote: > >> Hey all, >> >> I have a question/puzzle with zfs. See the following: >> >> bash-3.00# df -h | grep d25 ; zfs list | grep d25 >> >> FILESYSTEM SIZE USED AVAIL CAPACITY MOUNTED ON >> r12_data/d25 *659G* 40G *63G* 39% /opt/d25/oakwc12 >> df -h says the d25 file system is 659GB?; 40GB used and 63GB available? >> r12_data/d24 42G 40G 2.1G 95% /opt/d24/oakwcr12 >> >> NAME USED AVAIL REFER MOUNTPOINT >> r12_data/d25 760K *62.7G* 39.9G /opt/d25/oakwc12 >> zfs list says the db25 file system has 63GB available? >> r12_data/d24 39.9G 2.14G 39.9G /opt/d24/oakwcr12 >> >> >> Shouldn't the new filesystem (d25) size be what the clone was allocated? >> _______________________________________________ >> zfs-discuss mailing list >> zfs-discuss@opensolaris.org >> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >> >> > Hi Grant, > > We'd need more info than that to figure what's actually going on. > > Is d25 a clone of something? If so what? Can we see the specs of that as > well. > > Does d25 have any reservations or a quota? > > What does zfs list of r12_data show? > > Do you have snapshots? zfs list -t all will show you them. > > Finally, the clone will only be the size of it's delta from the source. > > HTH > > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
